Improvement in auxiliary heaters for steam fire-engines



A. B. HALLUCK. Auxiliary Heatrs for Steam Fire-Engines.

n N-0 `\4Q653 Patented`Apri|14,1874.

UNITED STATES PATENT OEEICIEo ABSALOM B. HALLOCK, OF PORTLAND, OREGON.

lIMPROVEMENT IN AUXILIARY HEATERs FOR STEAM MRE-ENGINES.

Specification forming part of Letters Patent No. 149,653, dated April14, 1874; application filed November 9, 1872.

To all whom t may concern.- v

Be it known that I, AEsALoM B. HALLocK, of Portland, in the county ofMultnomah and State of Oregon, have invented a new and ImprovedAuxiliary Heater for Steam Fire- Engines, of which the following is aspecification:

My invention consists in so arranging an E auxiliary heater on thehearth or foot plate of a steam nre-engine, and so connecting itsheating-coil with the boiler thereof, that'the two shall form onecompact and portable machine, capable of performing the functions of asteam fire-engine of the ordinary kind in a more efficient manner, andof effecting an important saving of time at ires with a minimum increasein cost of fuel and labor, as hereinafter described.

Figure l is a rear elevation of part of a steam fire-engine and thesectional elevation of the auxiliary heater. Fig. 2 is a horizontalsection of the heater, taken on the line y y of Fig. 1. Fig. 3 is ahorizontal section' on the line z a.

A is thepawl of thesteam nre-engine. B is the hearth or foot plate. C isthe shell of the vertical cylindrical heater resting on the foot-plate.I) is a coil of pipe within this heater, arranged around the interiorwall in a sort of continuation of the lining. The lower end of this coilextends through the heater at B, and connects by a crooked piece, F,with the boiler at or near the bottom, as shown at G. The connectionwill probably be with a hollow leg of the boiler. The upper end projectsat H in the like manner, and connects with the boiler at I, at thewater-line or a little below, by a pipe, K. Stop-cocks L are arranged inthe connections, near the boiler. The said connections are to be made sothey can be readily detached when it is desired to remove the heater.The fuel-hole Mis made in the upper portion of the heater, which is ofconical shape, to make suitable connections with the smokepipe. Anannular revolving door, O, with a corresponding fuel-hole, is fitted onthe conical portion of the heater, to open or close the hole Mbyshifting forward and back. A drafthole, P, is formed below the grate U,and provided with a similar annular door, Q, with a hole to correspondwith hole P, to open or close said hole by shifting around the heater. Adetachable pipe will be fitted upon the pipe N, to conduct the smoke tothe chimney when the engine is in the engine-house. This heater willhave a iire kept in it-continually for keeping thewater hot, so thatsteam can be raised quickly when the ire is applied to the boiler. lt isused because the circulation caused by the coil brings the water intocontact with aA small re better than if a re is kept up in the largerfurnace'of the engine-boiler. It also increases the he. -tin g capacityof the boiler when used in addition to it. It is placed at one side ofthe fire-door of the boiler, so'as not to interfere with irin g it. Byits use steam can be raised in about one-quarter of the time requiredwhen not used.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- An auxiliary water-heater, C, arranged and supportedon the hearth or foot plate B of the nre-engine, in combination with theboiler A, as shown and described, for the purpose specified.

ABSALOM B. HALLOGK.

Witnesses:

WM. WAsoHEE, A. C. RIPLEY.

